Growth in the number of references in engineering journal papers during the 1972–2013 period
- 442 Downloads
The number of references per paper, perhaps the best single index of a journal’s scholarliness, has been studied in different disciplines and periods. In this paper we present a four decade study of eight engineering journals. A data set of over 70,000 references was generated after automatic data gathering and manual inspection for errors. Results show a significant increase in the number of references per paper, the average rises from 8 in 1972 to 25 in 2013. This growth presents an acceleration around the year 2000, consistent with a much easier access to search engines and documents produced by the generalization of the Internet.
KeywordsNumber of references Citation density Engineering Citing behaviour Reference analysis
- Day, R. (1979). How to write and publish a scientific paper. Philadelphia, PA: ISI Press, http://books.google.es/books?id=5fhpAAAAMAAJ.
- Laurikkala, J., Juhola, M., Kentala, E., Lavrac, N., Miksch, S., & Kavsek, B. (2000). Informal identification of outliers in medical data. Proceedings of the 5th International Workshop on Intelligent Data Analysis in Medicine and Pharmacology, Citeseer (pp. 20–24).Google Scholar
- de Solla Price, D. J. (1965). Networks of scientific papers. HortScience 149(3683):510–515.Google Scholar
- de Solla Price, D. J. (1970). Citation measures of hard science, soft science, technology, and nonscience. In C. E. Nelson, D. K. Pollock (Eds.), Communication among scientists and engineers (pp. 3–22). Lexington: Heath Lexington Book.Google Scholar
- Weinstock, M. (1971). Citation indexes (Vol. 5). New York: Marcel Dekker.Google Scholar